挖掘机与土壤回转联系系统振动计算  

Calculation of Vibration on Connected Systems ofExcavating Machines and Soil's Turnaround

作　　者：黄俊峰[1] 于清海[2] 黄为钧[2] 

机构地区：[1]吉林工学院 [2]吉林工业大学

出　　处：《吉林工学院学报（自然科学版）》1991年第2期15-21,共7页Journal of Jilin Institute of Technology

摘　　要：挖掘机挖掘土壤切削过程工作阻力,有使其产生连续振动的特性。由于土壤物理机械性质不同,使其产生振动具有随机性质,挖掘机工作装置的外载荷也具有随机性。在大多数情况下,可表示为定态随机时间函数,取决于它的数学期望和相关函数,以及过程谱密度、互谱密度,应用这些有关理论,对“挖掘机与土壤”回转联系系统振动进行研究计算并提供方法。When excavators excavate soil,the Working resistance can cause continuous vibration. As different soils are different in their physical and mechanical properties, the vibrations which they brought about are random in characteristic; also the outer loads of the working devices of the excavator will fluctuate randomly. In most cases, depending on the mathematical expectation and the interrelated function, as will as pedigree density and mutual pedigree density of the process, the vibration can be expressed as a steady state stochactic time function. Under these assumptions, calculation of vibration on connected systems of excavating machines and soil's turnaround were done and the methods were presented.

关 键 词：随机载荷 谱密度 挖掘机 土壤挖掘 回转联系系统 工作阻力 连续振动 

分 类 号：TU621[建筑科学—建筑技术科学]